Phase Control Thyristors handle currents up to 25 A.

Press Release Summary:

Supplied in standard TO-48 package, 25RIA Series ranges from 100–1,200 V with max repetitive peak and off-state voltage from 100–1,200 V. Stud-style devices feature max non-repetitive peak voltage range of 150–1,300 V and max on-state voltage of 1.70 V. DC gate current required to trigger is 60 mA. Operating from -65 to +125°C, single-phase silicon controlled rectifiers provide optimized glass passivation and are suited for AC/DC converters, DC power supplies, and machine tool controls.

Original Press Release:

America Semiconductor Releases Medium Power, Phase Control Stud-Style Thyristors

High-Reliability, 25 Amp Devices Provided in Standard TO-48 Package

Linden, NJ -- Announced today by America Semiconductor, LLC, a leading manufacturer of state-of-the-industry high-power semiconductors, is the 25RIA Series of medium power, phase control thyristors.  The single-phase Silicon Controlled Rectifiers (SCR) are supplied in a standard TO-48 package with a current handling capability to 25 Amps. Notably providing enhanced glass passivation to maximize stability and reliability at high temperatures, the rugged parts additionally boast low thermal resistance and high dl/dt and dV/dt capabilities.

America Semiconductor's stud thyristors are optimized for use in a broad range of high-reliability consumer and industrial applications. The devices are most frequently employed in AC/DC converters, DC power supplies and machine tool controls. 

Parts are offered in voltages ranging from 100 V to 1200 V with a maximum repetitive peak and off-state voltage range from 100 V to 1200 V.  Their maximum non-repetitive peak voltage range is from 150 V to 1300 V. Maximum on-state voltage is 1.70 V and DC gate current required to trigger is 60 mA. The thyristors additionally feature a maximum operating junction and storage temperature range of -65° to 125° C.  The SCRs weigh approximately 14 g (0.49 oz.). Parts are manufactured of silver-tone metal.  Metric threads versions are available.

Customers may call America Semiconductor at 908-810-SEMI(7364) or email for a list of authorized distributors.  Additional information may be found at,

About America Semiconductor:

Headquartered in Linden, NJ, America Semiconductor is a global leader in the manufacturing of mission-critical, high-power semiconductors, low-power semiconductors and discrete semiconductor components to help OEM companies solve their design challenges.  With over 50 years of accumulated expertise in the semiconductor industry, America Semiconductor’s rugged high-reliability high-power standard, fast and super-fast recovery rectifiers, low-power and bridge rectifiers, diacs, IGBT modules, SCRs, Triacs,  Shottky and Zener diodes are employed in an array of industries including alternative energy, oil drilling, power grid, welding, HVAC, and transportation.  The company operates a meticulous quality control program and extensive supply chain.  America Semiconductor's parts are available exclusively through a global network of distributors.

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